User blog comment:Super29392/Theories on the upcoming update/@comment-34111194-20180114163504

Why would a swamp have poison types? I feel like water/ground types would be more prominant here. It might be like the swampy safari in pokemon diamond/pearl.

Grass types combined with water/ground and a couple of poison types. Seems the most fair considering we had plenty of poison types back in anthian and the gale forest